<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>js案例</title>
		<script>
			alert("Welcome to js world!");
			document.write("这是给java81的js案例");
			console.log("家里事情没有处理好");
		</script>
		<script src="java81.js"></script>
	</head>
	<body>
	</body>
</html>